Search for string mark ajoining column

[cleanenergy]

I've been trying to create an excel macro that would search a rather large sheet (with many rows) for a specific string (Example: "motorcycle") and then mark the very next column with an "x" as an indication of the find.

There are basically 4 columns and the column I am searching is B and I'd like put the mark in C.

Thank you
Frank

[Blake 7]

does it have to be a vba macro? how about a lookup formula and record that as a macro - or maybe thats not v reliable?